28710549

素因数分解:

$3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1291}}^1$

素因数の和:1657

約数の個数: 24

約数和(自身を含む): 47566272

約数和(自身を除く): 18855723

約数列:

[1, 3, 7, 9, 21, 63, 353, 1059, 1291, 2471, 3177, 3873, 7413, 9037, 11619, 22239, 27111, 81333, 455723, 1367169, 3190061, 4101507, 9570183, 28710549]

約数ペア:

[(1, 28710549), (3, 9570183), (7, 4101507), (9, 3190061), (21, 1367169), (63, 455723), (353, 81333), (1059, 27111), (1291, 22239), (2471, 11619), (3177, 9037), (3873, 7413)]